菌落总数测定结果不确定度的评定
目的 对质控样中菌落总数测定结果进行不确定度评定。方法 菌落总数测定依据GB 4789.2-2016《食品安全国家标准食品微生物学检验 菌落总数测定》进行测定和结果判断, 再根据JJF 1059.1-2012《测量不确定度评定与表示》的规定, 对测定过程中引入的不确定度分量进行评定, 然后采用合成的方法来计算和评定菌落总数的不确定度。结果 扩展不确定度为0.08, 结果对数值取值区间为(3.85±0.08), 取反对数取值区间则为(5900, 8500)。结论 本方法可有效评定菌落总数的不确定度。
Objective To evaluate the uncertainty of the total number of colonies in the quality control sample. Methods The aerobic plate count was determinated and judged according to GB 4789.2-2016 “National Food Safety Standard for Microbiological Inspection of Food”. The uncertainty components introduced in the determination process were evaluated according to JJF 1059.1-2012 “Evaluation and Representation of Uncertainty in Measurement”. Then, the uncertainty of aerobic plate count was calculated and evaluated by a synthetic method. Results The extended uncertainty was 0.08, and the value range of the corresponding value was (3.85±0.08), and the value range of the opposite value was (5900, 8500). Conclusion This method is effective to evaluate the uncertainty of aerobic plate count.
标题：菌落总数测定结果不确定度的评定
英文标题：Evaluation of uncertainty in the results of aerobic plate count
作者：
韦云 广东省食品检验所
杨丹婷 广东省食品检验所
苏妙贞 广东省食品检验所
周露 广东省食品检验所
中文关键词:菌落总数,不确定度,评定,
英文关键词:aerobic plate count,uncertainty,evaluation,
发表日期：2019-09-05
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